MySQL 1040: Too many connections.

  1. Check the current number of connections:


SHOW STATUS WHERE `variablename` = 'Threadsconnected';

  1. Identify what those connections are doing:


SHOW PROCESSLIST;

  1. If safe, terminate unnecessary or stuck connections:


KILL [connection id];

  1. Temporarily increase the max connections limit (if server resources allow):


SET GLOBAL max_connections = [new limit];

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